<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <!--2 导入一个dom -->
      <div id="main" style="width: 600px; height: 400px"></div>
    </el-card>
  </div>
</template>
<script>
// 1 导入echarts
import * as echarts from 'echarts'
import _ from 'lodash'
export default {
  data () {
    return {
      reportData: {},
      // 4 指定图表的配置项和数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created () {},
  methods: {},
  // 在页面渲染出来的时候初始化
  async   mounted () {
    const { data: res } = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) {
      return this.$message.error('获取数据报告失败')
    }
    this.reportData = res.data
    // 3 进行echarts初始化
    var myChart = echarts.init(document.getElementById('main'))
    // 合并数据
    const result = _.merge(this.reportData, this.options)
    // 5 展示数据
    myChart.setOption(result)
  }
}
</script>
<style   scoped>
</style>
